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| #define _POSIX_C_SOURCE 200809L | |
| #include "ruby/internal/config.h" | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <unistd.h> | |
| #include <sys/types.h> | |
| #include <sys/stat.h> | |
| #include "ruby-runner.h" | |
| #ifdef MAKE_MJIT_BUILD_DIR | |
| const char MJIT_HEADER[] = BUILDDIR "/" MJIT_MIN_HEADER; | |
| #else | |
| #define STRINGIZE(expr) STRINGIZE0(expr) | |
| #define STRINGIZE0(expr) #expr | |
| static void | |
| insert_env_path(const char *envname, const char *paths, size_t size, int prepend) | |
| { | |
| const char *env = getenv(envname); | |
| char c = 0; | |
| size_t n = 0; | |
| if (env) { | |
| while ((c = *env) == PATH_SEP) ++env; | |
| n = strlen(env); | |
| while (n > 0 && env[n-1] == PATH_SEP) --n; | |
| } | |
| if (c) { | |
| char *e = malloc(size+n+1); | |
| size_t pos = 0; | |
| if (prepend) { | |
| memcpy(e, paths, pos = size-1); | |
| e[pos++] = PATH_SEP; | |
| } | |
| memcpy(e+pos, env, n); | |
| pos += n; | |
| if (!prepend) { | |
| e[pos++] = PATH_SEP; | |
| memcpy(e+pos, paths, size-1); | |
| pos += size-1; | |
| } | |
| e[pos] = '\0'; | |
| env = e; | |
| } | |
| else { | |
| env = paths; | |
| } | |
| setenv(envname, env, 1); | |
| } | |
| #define EXTOUT_DIR BUILDDIR"/"EXTOUT | |
| int | |
| main(int argc, char **argv) | |
| { | |
| static const char builddir[] = BUILDDIR; | |
| static const char rubypath[] = BUILDDIR"/"STRINGIZE(RUBY_INSTALL_NAME); | |
| static const char rubylib[] = | |
| ABS_SRCDIR"/lib" | |
| PATH_SEPARATOR | |
| EXTOUT_DIR"/common" | |
| PATH_SEPARATOR | |
| EXTOUT_DIR"/"ARCH | |
| ; | |
| #ifndef LOAD_RELATIVE | |
| static const char mjit_build_dir[] = BUILDDIR"/mjit_build_dir."SOEXT; | |
| struct stat stbuf; | |
| #endif | |
| const size_t dirsize = sizeof(builddir); | |
| const size_t namesize = sizeof(rubypath) - dirsize; | |
| const char *rubyname = rubypath + dirsize; | |
| char *arg0 = argv[0], *p; | |
| insert_env_path(LIBPATHENV, builddir, dirsize, 1); | |
| insert_env_path("RUBYLIB", rubylib, sizeof(rubylib), 0); | |
| #ifndef LOAD_RELATIVE | |
| if (PRELOADENV[0] && stat(mjit_build_dir, &stbuf) == 0) { | |
| insert_env_path(PRELOADENV, mjit_build_dir, sizeof(mjit_build_dir), 1); | |
| setenv("MJIT_SEARCH_BUILD_DIR", "true", 0); | |
| } | |
| #endif | |
| if (!(p = strrchr(arg0, '/'))) p = arg0; else p++; | |
| if (strlen(p) < namesize - 1) { | |
| argv[0] = malloc(p - arg0 + namesize); | |
| memcpy(argv[0], arg0, p - arg0); | |
| p = argv[0] + (p - arg0); | |
| } | |
| memcpy(p, rubyname, namesize); | |
| execv(rubypath, argv); | |
| perror(rubypath); | |
| return -1; | |
| } | |
| #endif /* MAKE_MJIT_BUILD_DIR */ |